Wireless strain measurement using circular microstrip patch antennas

被引：63
|
作者：
Daliri, Ali [1 ,2 ]
Galehdar, Amir [2 ]
John, Sabu [1 ]
Wang, Chun H. [1 ]
Rowe, Wayne S. T. [2 ]
Ghorbani, Kamran [2 ]
机构：
[1] RMIT Univ, Sch Aerosp Mech & Mfg Engn, Bundoora, Vic 3083, Australia
[2] RMIT Univ, Sch Elect & Comp Engn, Melbourne, Vic 3001, Australia
来源：
SENSORS AND ACTUATORS A-PHYSICAL | 2012年 / 184卷
关键词：
Wireless strain sensor; Microstrip patch antenna; Antenna sensor; Structural health monitoring; Passive sensor;
D O I：
10.1016/j.sna.2012.07.003
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Wireless interrogation of circular microstrip patch antennas (CMPAs) for strain sensing is investigated by experimental measurements and computational simulations. The effect of the conductivity of the host structure on the wireless monitoring efficiency is also considered. It is shown that strain can be measured wirelessly in any desired direction using a linearly polarised horn antenna, up to a distance of 5 cm. Beyond this distance, the signal-to-noise ratio diminishes for the CMPAs employed in this study. This new contactless strain sensing technique offers significant potential for wireless structural health monitoring of civil and aerospace structures. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：86 / 92
页数：7
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